11101122220201 has 6 divisors (see below), whose sum is σ = 12020741812590. Its totient is φ = 10247189741568.

The previous prime is 11101122220169. The next prime is 11101122220217. The reversal of 11101122220201 is 10202222110111.

It can be written as a sum of positive squares in 3 ways, for example, as 96908312601 + 11004213907600 = 311301^2 + 3317260^2 .

It is not a de Polignac number, because 11101122220201 - 2⁵ = 11101122220169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11101122220301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32843556696 + ... + 32843557033.

It is an arithmetic number, because the mean of its divisors is an integer number (2003456968765).

Almost surely, 2^{11101122220201} is an apocalyptic number.

It is an amenable number.

11101122220201 is a deficient number, since it is larger than the sum of its proper divisors (919619592389).

11101122220201 is an equidigital number, since it uses as much as digits as its factorization.

11101122220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65687113755 (or 65687113742 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11101122220201 its reverse (10202222110111), we get a palindrome (21303344330312).

The spelling of 11101122220201 in words is "eleven trillion, one hundred one billion, one hundred twenty-two million, two hundred twenty thousand, two hundred one".